Apple's Sept. 9 Event: Here's What to Expect

We now know when Apple will hold its next big product unveiling. Now it's just a matter of finding out what products will make their debut at the Sept. 9 press event. What we know: Press invitations for the Sept. 9 event went out today (August 27). The event kicks off at 10 a.m. PT at San Francisco's Bill Graham Civic Auditorium.

Apple's invitation gives a hint as to what might be on the agenda for Sept. 9. The invite features an Apple logo intertwined with the redesigned Siri interface already available on the Apple Watch and slated for fall's iOS 9 release, along with the words, "Hey Siri, give us a hint." That would seemingly point to products tied into Apple's voice-powered digital assistant.

The iPhone, which includes Siri, would be an obvious candidate for a big product release. Apple typically releases new phones in the fall — in fact, the Sept. 9 event will take place a year to the day that Apple took the wraps off the iPhone 6 and iPhone 6 Plus.

The next iPhones — rumored to be called the iPhone 6S and 6S Plus — are expected to incorporate the Apple Watch's Force Touch feature to give users access to new commands and actions. Improvements to the camera are also widely expected: The new iPhone will reportedly feature a 12-megapixel camera, which 9to5Mac reports will be able to shoot 4K video. Apple may also revive the C line of phones, last seen with the iPhone 5C, featuring smaller displays and a more attractive price tag than the advanced 6S and 6S Plus models.

Whatever new phones Apple introduces on Sept. 9 will run on iOS 9, the next version of Apple's mobile operating system. Apple previewed the new OS at June's Worldwide Developer Conference, and it's already available as a public beta. iOS 9 highlights include a Proactive Assistant that delivers more contextually relevant suggestions and search results, a more conversation Siri and improvements to the Maps and Notes apps.

The iPhone likely won't be the only product on display at Apple's press events. The Apple TV, last updated in 2012, is in line for an overhaul. The set-top box will reportedly get Siri integration and a redesigned remote control, along with full iOS for running apps.

While a revamped Apple TV may be on tap for next month's event, the long-rumored streaming TV service that Apple reportedly has in the works will not be. Earlier this month, Bloomberg reported that Apple is targeting 2016 for the launch of an on-demand TV service, as it continues to negotiate with broadcasters.

Apple is also rumored to be revealing the iPad Pro, a 12.9-inch version of the company's signature slate that features a beefy processor and a slew of multitasking features. The slate is expected to feature Force Touch and an optional stylus, and may carry a starting price of $799.

Like the iPhone, the Apple Watch also got stage time at last year's Sept. 9 event and could be in for a repeat performance this year. While Apple is unlikely to show off a new version of its smartwatch, it could focus more on the user-facing features of WatchOS 2, first previewed at June's developer conference. The new OS features more customization capabilities, fitness tracking improvements and the ability to see upcoming events with a twist of the Apple Watch's digital crown.

On top of a potential new WatchOS, images of a purported Product (Red) version of the Apple Watch Sport band have leaked, suggesting that Apple Watch owners may have some new customization options to look forward to.